#FIG 3.2 Portrait Center Inches A4 100.00 Single -2 1200 2 6 2400 675 6525 1425 2 2 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 5 2400 675 6525 675 6525 1425 2400 1425 2400 675 4 0 0 100 0 18 16 0.0000 4 180 3885 2475 975 DS1687 Real Time Clock for 6502\001 4 0 0 100 0 18 16 0.0000 4 225 2655 2475 1275 Chris Ward, 16/11/1999\001 -6 6 750 4725 1125 4950 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1050 4725 900 4725 4 0 0 100 0 16 12 0.0000 4 135 345 750 4950 R/W\001 -6 6 825 5100 1125 5325 4 0 0 100 0 32 13 0.0000 4 195 135 825 5250 f\001 4 0 0 100 0 16 12 0.0000 4 135 105 975 5250 2\001 -6 6 1200 4125 1350 4275 1 3 0 1 0 7 1 0 20 0.000 1 0.0000 1275 4200 50 50 1275 4200 1325 4200 -6 6 1200 5625 1350 5775 1 3 0 1 0 7 1 0 20 0.000 1 0.0000 1275 5700 50 50 1275 5700 1325 5700 -6 6 1800 3000 2775 6225 6 1875 3750 2175 4050 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1875 3750 2025 3750 4 0 0 100 0 16 12 0.0000 4 135 120 1875 3975 E\001 4 0 0 100 0 16 10 0.0000 4 120 90 2025 4050 2\001 -6 6 1875 3375 2175 3675 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1875 3375 2025 3375 4 0 0 100 0 16 12 0.0000 4 135 120 1875 3600 E\001 4 0 0 100 0 16 10 0.0000 4 120 90 2025 3675 1\001 -6 6 1875 4800 2175 5025 4 0 0 100 0 16 10 0.0000 4 120 90 2025 5025 1\001 4 0 0 100 0 16 12 0.0000 4 135 135 1875 4950 A\001 -6 6 1875 4500 2175 4725 4 0 0 100 0 16 10 0.0000 4 120 90 2025 4725 2\001 4 0 0 100 0 16 12 0.0000 4 135 135 1875 4650 A\001 -6 6 1875 5100 2175 5325 4 0 0 100 0 16 10 0.0000 4 120 90 2025 5325 0\001 4 0 0 100 0 16 12 0.0000 4 135 135 1875 5250 A\001 -6 6 1875 4125 2175 4350 4 0 0 100 0 16 12 0.0000 4 135 120 1875 4275 E\001 4 0 0 100 0 16 10 0.0000 4 120 90 2025 4350 3\001 -6 6 2625 5925 2775 6150 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2700 5925 2625 5925 4 0 0 100 0 16 12 0.0000 4 135 105 2625 6150 0\001 -6 6 2625 5550 2775 5775 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2700 5550 2625 5550 4 0 0 100 0 16 12 0.0000 4 135 105 2625 5775 1\001 -6 6 2625 5175 2775 5400 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2700 5175 2625 5175 4 0 0 100 0 16 12 0.0000 4 135 105 2625 5400 2\001 -6 6 2625 4800 2775 5025 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2700 4800 2625 4800 4 0 0 100 0 16 12 0.0000 4 135 105 2625 5025 3\001 -6 6 2625 4425 2775 4650 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2700 4425 2625 4425 4 0 0 100 0 16 12 0.0000 4 135 105 2625 4650 4\001 -6 6 2625 4050 2775 4275 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2700 4050 2625 4050 4 0 0 100 0 16 12 0.0000 4 135 105 2625 4275 5\001 -6 6 2625 3675 2775 3900 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2625 3675 2700 3675 4 0 0 100 0 16 12 0.0000 4 135 105 2625 3900 6\001 -6 6 2625 3300 2775 3525 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2625 3300 2700 3300 4 0 0 100 0 16 12 0.0000 4 135 105 2625 3525 7\001 -6 2 2 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 5 1800 3225 2775 3225 2775 6225 1800 6225 1800 3225 4 0 0 100 0 16 12 0.0000 4 135 750 1950 3150 74LS138\001 4 0 0 100 0 16 12 0.0000 4 135 405 1875 6150 GND\001 4 0 0 100 0 16 12 0.0000 4 135 345 1875 5775 Vcc\001 -6 6 1125 6225 1425 6525 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1275 6225 1275 6375 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1125 6375 1425 6375 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1200 6450 1350 6450 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1245 6525 1320 6525 -6 6 975 3750 1275 4050 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1275 3900 1125 3900 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1125 3750 1125 4050 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1050 3825 1050 3975 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 975 3870 975 3945 -6 6 5475 5025 5850 5250 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 5475 5025 5775 5025 4 0 0 100 0 16 12 0.0000 4 135 315 5475 5250 IRQ\001 -6 6 5475 4050 5775 4275 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 5475 4050 5775 4050 4 0 0 100 0 16 12 0.0000 4 135 285 5475 4275 WR\001 -6 6 5475 3300 5775 3525 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 5475 3300 5700 3300 4 0 0 100 0 16 12 0.0000 4 135 255 5475 3525 RD\001 -6 6 5475 2775 5775 3000 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 5475 2775 5700 2775 4 0 0 100 0 16 12 0.0000 4 135 255 5475 3000 CS\001 -6 6 6525 4650 6975 4875 4 0 0 100 0 16 12 0.0000 4 135 135 6525 4800 V\001 4 0 0 100 0 16 8 0.0000 4 90 360 6600 4875 BAUX\001 -6 6 6525 4275 7050 4500 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 6525 4275 6975 4275 4 0 0 100 0 16 12 0.0000 4 135 480 6525 4500 RCLR\001 -6 6 6675 3825 6975 4050 4 0 0 100 0 16 12 0.0000 4 135 135 6675 3975 V\001 4 0 0 100 0 16 8 0.0000 4 90 180 6750 4050 CC\001 -6 6 7500 3900 7650 4050 1 3 0 1 0 7 1 0 20 0.000 1 0.0000 7575 3975 50 50 7575 3975 7625 3975 -6 6 7425 5325 7725 5625 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 7575 5325 7575 5475 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 7425 5475 7725 5475 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 7500 5550 7650 5550 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 7545 5625 7620 5625 -6 6 7500 5100 7650 5250 1 3 0 1 -1 -1 0 0 20 0.000 1 0.0000 7575 5175 30 30 7575 5175 7605 5175 -6 6 7275 3900 7425 4050 1 3 0 1 -1 -1 0 0 20 0.000 1 0.0000 7350 3975 30 30 7350 3975 7380 3975 -6 6 4650 5850 5250 6375 6 4800 5850 5175 6075 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 4800 5850 5100 5850 4 0 0 100 0 16 12 0.0000 4 135 315 4800 6075 IRQ\001 -6 6 4650 6150 5250 6375 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 4875 6150 5250 6150 4 0 0 100 0 16 12 0.0000 4 135 570 4650 6375 or NMI\001 -6 -6 6 3150 1725 4725 2325 6 3150 2025 4725 2325 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 3525 2025 3600 2025 4 0 0 100 0 16 12 0.0000 4 180 1545 3150 2250 e.g. 4 on 74LS154\001 -6 6 3525 1725 4275 1950 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 3525 1725 4200 1725 4 0 0 100 0 16 12 0.0000 4 135 705 3525 1950 SELECT\001 -6 -6 6 3750 2850 3900 3000 1 3 0 1 -1 -1 0 0 20 0.000 1 0.0000 3825 2925 30 30 3825 2925 3855 2925 -6 6 3675 4445 4350 4697 1 3 0 1 -1 7 1 0 20 0.000 1 0.0000 4138 4571 42 42 4138 4571 4138 4613 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 3675 4571 3843 4571 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 4182 4571 4350 4571 2 3 0 1 -1 7 1 0 20 0.000 0 0 -1 0 0 4 4096 4571 3843 4445 3843 4697 4096 4571 -6 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 6 1425 5250 1200 5250 1125 5175 1200 5100 1425 5100 1425 5250 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 6 1425 4950 1200 4950 1125 4875 1200 4800 1425 4800 1425 4950 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 6 1425 4650 1200 4650 1125 4575 1200 4500 1425 4500 1425 4650 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1800 4575 1425 4575 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1800 4875 1425 4875 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1800 5175 1425 5175 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1800 4200 1350 4200 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1800 5700 1350 5700 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 1800 6075 1275 6075 1275 6225 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 1800 3900 1275 3900 2 1 2 1 0 7 100 0 -1 3.000 0 0 -1 0 0 2 6825 2925 6825 3375 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 7050 2850 7425 2850 7500 2775 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 7050 3450 7425 3450 7500 3375 2 1 2 1 0 7 100 0 -1 3.000 0 0 -1 0 0 2 7200 2850 7200 3450 2 1 0 3 0 7 100 0 -1 0.000 0 0 -1 0 0 2 7500 3525 7500 2550 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 6 7425 2550 7425 2325 7500 2250 7575 2325 7575 2550 7425 2550 2 2 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 5 5400 2700 7050 2700 7050 5325 5400 5325 5400 2700 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 7500 3975 7050 3975 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 7050 5175 7575 5175 7575 5325 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 7050 4725 7575 4725 7575 5175 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 7350 3975 7350 4425 7050 4425 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2775 3450 5400 3450 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 2775 4200 5400 4200 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 4 3675 4575 3375 4575 3375 5700 2775 5700 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 6 5025 5475 5025 5700 4950 5775 4875 5700 4875 5475 5025 5475 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 3 5400 5175 4950 5175 4950 5475 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 6 3750 2625 3750 2400 3825 2325 3900 2400 3900 2625 3750 2625 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 4 5400 2925 1425 2925 1425 3525 1800 3525 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 3825 2625 3825 2925 2 1 0 1 0 7 100 0 -1 0.000 0 0 -1 0 0 2 4350 4575 5400 4575 4 0 0 100 0 16 12 0.0000 4 135 240 825 4650 A0\001 4 0 0 100 0 16 12 0.0000 4 135 345 825 4275 +5V\001 4 0 0 100 0 16 12 0.0000 4 135 375 6600 2925 AD0\001 4 0 0 100 0 16 12 0.0000 4 135 345 825 5775 +5V\001 4 0 0 100 0 16 12 0.0000 4 135 375 6600 3525 AD7\001 4 0 0 100 0 16 10 0.0000 4 120 210 7275 2775 D0\001 4 0 0 100 0 16 10 0.0000 4 120 210 7275 3375 D7\001 4 0 0 100 0 16 12 0.0000 4 135 600 7200 2250 D0-D7\001 4 0 0 100 0 16 12 0.0000 4 135 360 5475 4650 ALE\001 4 0 0 100 0 16 12 0.0000 4 135 675 5925 2625 DS1687\001 4 0 0 100 0 16 12 0.0000 4 135 405 6600 5250 GND\001 4 0 0 100 0 16 12 0.0000 4 135 345 7650 4050 +5V\001 4 0 0 100 0 16 12 0.0000 4 135 645 3750 4950 74LS04\001